Why cant I save a video sent by text from an Iphone to my s3?

[AC Question]

Why cant I save a video sent by text from an Iphone to my s3?

 

[UJ95x]

What happens when you try to save it? Are you trying to do it over WiFi or mobile data? If it's the latter, you carrier might have a limit on MMS size you can download over their network, and you will have to use a WiFi network to accomplish what you are trying to do.